Floor-jack.



No. 876,693.' PATENTBD JA1\T.14, 1908. G. H. GOLDWELL.

FLOOR JACK.

APPLICATION FILED JAN. 8, 1907.

WM Y

GEORGE H. OOLDWELL, OF ROGK'ION, PENNSYLVANIA.

FLOOR-JACK.

Specification of Letters Patent.

Patented Jan. 14:, 1908.

Application filed. January 8. 1907- Serial No. 351.369.

To all whom it may concern:

Be it known that GEORGE H. OoLDwnLL, a citizen of the United States, residing at Rockton, in the county of Olearfield and State of Pennsylvania, has invented certain new andv useful Improvements in Floor- Jacks, of which the following is a specification.

This invention relates to devices for setting up tongue and groove flooring and the like, and has for its object to provide an improved device of this character or floor jack which is very simple in its construction and is arranged for convenient handling so as to facilitate the engagement of the device with a piece of flooring or the like and to permit of the convenient manipulation of the device for forcing the successive floor pieces into position.

WVith these and other objects in view, the present invention consists in the combination and arrangement of parts as will be hereinafter more fully described, shown in the accompanying I drawings and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings,Figure 1 is a perspective View of a floor jack embodying the features of the present invention. Fig. 2 is a side elevation showing the jack in use. Fig. 3 is an inverted perspective view of the plunger elementv of the device. Fig. 4 is an enlarged fragmentary sectional view of the shoe member of the jack.

Like characters of reference indicate corresponding parts in each of the several figures of the drawings.

The present device has a handle bar or lever 1, which may be of metal but preferably of wood, into the lower end of which is driven or otherwise seated the shank 2 of a metallic foot or fulcrum member 3 having its outer end provided with a chisel edge 4 designed to bite into a floor beam or the like. This foot or fulcrum member is provided with an intermediate enlargement 5 which is flat and is straddled by the forked rear end of a link 6, which is broadened out at its free end to form a shoe 7 having a transverse shoulder 8 depending therefrom in rear of the front edge of the shoe. That portion of the shoe which projects in front of the shoulder 8 is provided with a pair of perforations 10 for the reception of suitable set screws 11 designed to hold in place a grooved liner element 12, which is preferably a short piece of a grooved section of flooring.

In practice, the device is placed in position adjacent the piece of flooring to be nailed, such for instance as shown at 13 in Fig. 2 of the drawings, the liner element 13 being placed against the ribbed or tongued edge of the flooring strip so as to receive the tongue in the groove of the liner. The fulcrum or chisel edge 4 of the lever is forced into the floor beam 14, and then the lever is swung so as to force the last piece of floor snugly against those pieces which have already been laid, whereupon the flooring strip is nailed in the usual manner and the jack is removed to make room for another flooring strip.

While I propose to equip the jack with aliner member 12, this is not absolutely necessary as a workman can readily saw a short piece from a tongued flooring section for use in connection with the shoe of the jack.

From the foregoin description, it will be understood that the device of the present invention is very simple and effective for the purpose designed and may be readily and satisfactorily manipulated without requiring any particular degree of skill or experience.

Having thus described the invention, what is claimed is A floor jack comprising a handle, a shank having one end fitted into the handle and its other end .formed into a sharp fulcrum terminal, the middle portion of the shank being laterally enlar ed and flat, a link having one end bifurcated and pivotally straddling the flat portion of the shank and its free end laterally enlarged and provided with a top flange projecting in advance of the enlargement, a pair of set screws piercing the flange,

and a liner member fitting in the seat between the flange and the outer end of the link and held therein by the set screws, substantially as described.

In testimony whereof I affix my signature, in presence of two witnesses.

GEO. H. OOLDWELL. Witnesses:

E. S. MILES, E. M. CoLDWELL. 

